NASA is wrestling with two technical problems that could delay Thursday's launch of space shuttle Discovery, according to Local 6 News.

Discovery's astronauts remain scheduled to blast off from Kennedy Space Center just before 9:36 p.m. Thursday but engineers will brief managers Wednesday on a potential problem with an adhesive used on shuttle solid rocket boosters and a split-second power surge at the launch pad.

The results of recent tests raised concerns about a manufacturing lot of the adhesive, which is used in joints between booster segments, Local 6 News partner Florida Today reported. Managers also want to make sure the power surge, which was recorded Tuesday, did not damage any shuttle systems.

It was unclear late Tuesday whether either problem would be a show-stopper, the report said.

"It's too early for me to say one way or another," said LeRoy Cain, NASA's shuttle launch integration manager at KSC.

The weather also could be a problem. Forecasters say there is a 40 percent chance that low clouds could cause a delay Thursday.

NASA launch rules call for cloud decks to be at least 4,000 feet above the launch pad so range safety officers can track the shuttle during the critical early part of flight. A clear view of KSC's shuttle runway also is required in case of an emergency landing.

Conditions are expected to degrade Friday and Saturday. There's a 60 percent chance that strong winds would exceed NASA limits on either of those days.

NASA wants to launch Discovery by Dec. 17 so that its crew can complete an International Space Station assembly mission before the end of the year.

Watch Local 6 News for more on this story.